Pop Quiz: What was the first British Act to hit Number One in the US?
Slim Whitman?
According to chart expert Joel Whitburn, Love Is the Sweetest Thing by Ray Noble & His Orchestra was the bestselling single from mid-August to mid-September, 1933. And it's far superior to anything the Beatles ever did.
However, there were no charts in 1933.
Vera Lynn's version of Auf Wiedersehen (good bye) topped the charts in the early summer of 1952.